Britain's Princess Beatrice celebrated WE Day in London on Wednesday (09.03.16).

Princess Beatrice

Princess Beatrice

The royal showed her support for the event, backed by Free the Children UK, as she attended the charity concert at Wembley Stadium.

Beatrice was one of many famous faces at the gig, which brings together world-renowned speakers, performers and young people and raises money for youth projects worldwide.

Clive Owen, Rita Ora, Fleur East, Labrinth, Nico & Vinz, Professor Brian Cox, Beatrice York, Darren Criss, Karl Lokko, DNCE and Marlee Matlin were all in attendance while Beatrice and her pal Sam Branson were spotted dancing in the audience during the musical performances.

Sam's sister Holly is a patron of Free The Children and co-chair of WE Day UK

Children earned their tickets for the concert through volunteering and Clive said: "I'm honoured to return to the WE Day stage to congratulate the thousands of students who have all earned their ticket, and to applaud all the incredible work they've done throughout the year. Ever since my family and I went on a trip to Kenya to see the work of Free The Children four years ago, I have been a proud ambassador of a movement that is doing such important work and creating such positive change in the world."

WE Day UK was hosted by Laura Whitmore, Bluey Robinson, Yasmin Evans, and Becca Dudley.

WE Day is connected to a yearlong free educational programme, WE Schools, which provides educational resources and campaigns to help young people turn the day's inspiration into sustained action. For more information, visit www.we.org.